控件button，隐藏该控件，当input里值变化时，调用js，在js里触发该按钮的onclick事件，把具体的操作数据的代码就可以放到onclick事件里了。但是这里的隐藏不是使用visable来隐藏的，而是使用：
使用上下键让ListBox里的内容显示到Input上呢，很明显，ListBox本身支持上下键的，只需要调用SelectedIndexChanged方法，然后为Input赋值即可。可是，怎么样保证
<%@ Page Language="C
#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inher
ITs="_Default" %>
<!DOCTY
PE ht
ML P
ubLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.
org/TR/xhtml1/DTD/xhtml1
-transitional.dtd">
<html
XMlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script language="javascript" type="text/javascript">
function
abc() {
VAR inputV = document.getElementById("in").value;
//根据浏览器判断
if (/msie/i.
test(navigator.userAgent)) //ie浏览器
{
document.getElementById("lbltext").innerText = inputV;
}
else {//非ie浏览器，比如Firefox
document.getElementById("lbltext").innerHTML = inputV; //火狐等浏览器的赋值方式
}
}
function InputT() {
var f = document.getElementById("inpContent");
var abc = document.getElementById("btnHelp");
document.getElementById("btnHelp").click(); //触发Button的onclick事件
}
//为input 添加的keydown事件
function InputKeyDownFocus() {
//
方向键的ASCII值：上：38，下：40
if (event.keyCode
== "38" || event.keyCode == "40") {
document.getElementById("lst").focus(); //使ListBox获得
焦点 }
else {
document.getElementById("inpContent").focus();
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
输入内容：
<
br />
<input runat="server" id="inpContent" oninput="InputT()" on
PRopertychange="InputT()"
onkeyup="InputKeyDownFocus()" </br> />
<asp:ListBox runat="server" ID="lst" OnSelectedIndexChanged="lst_SelectedIndexChanged"
AutoPostBack="true"</asp:ListBox>
<asp:Button runat="server" ID="btnHelp" OnClick="btnHelp_Click" Text="隐藏按钮" />
</div>
</form>
</body>
</html>
using
System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class _Default : System.Web.UI.Page
{
enum Direction
{
Up, Right, Down, Left
}
Direction dir;
protected void Page_Load(object sender, Event
args e)
{
btnHelp.Style.Add("display", "none");
}
protected void lstShow_SelectedIndexChanged(object sender, EventArgs e)
{
ListBox lItem = (ListBox)sender;
string lItemValue = lItem.SelectedItem.Text;
txtInput.Text = lItemValue;
}
/// summary
/// 前台调用的方法
/// /summary
/// par
am name="sender"/param
/// param name="e"/param
protected void btnHelp_Click(object sender, EventArgs e)
{
string inputStr = inpContent.Value.Trim(); //文本框输入系统
Listobject listNew = new Listobject();
listNew.Add("abc");
listNew.Add("abcde");
listNew.Add("bcd");
listNew.Add("bcdef");
listNew.Add("bcdagb");
listNew.Add("bbccaa");
listNew.Add("aabbdd");
listNew.Add("ccaabbdd");
lst.Items.Clear(); //清除原有值
int i = 1;
for
each (object obj in listNew)
{
//符合条件的数据
if (obj.ToString().Cont
ains(inputStr))
{
lst.Style.Add("display", "block");
lst.Items.Add(new ListItem(obj.ToString(), "" + i));
i++;
}
}
if (lst.Items.Count 0)
{
lst.SelectedIndex = 0;
}
inpContent.Focus();
}
/// summary
/// ListBox下拉框的值
改变时
/// /summary
/// param name="sender"/param
/// param name="e"/param
protected void lst_SelectedIndexChanged(object sender, EventArgs e)
{
ListBox lItem = (ListBox)sender;
lst.Style.Add("display", "block");
string lItemValue = lItem.SelectedItem.Text;
inpContent.Value = lItemValue;
lst.Focus();
}